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1. 发明申请

US20170194670A1 POWER TOOL AND BATTERY PACK 审中-公开
公开(公告)号：US20170194670A1
公开(公告)日：2017-07-06
申请号：US15315174
申请日：2015-05-22
申请人： Hitachi Koki Co., Ltd.
发明人： Yoshikazu KAWANO , Nobuhiro TAKANO , Toshiaki KOIZUMI , Kazuhiko FUNABASHI , Kenichirou YOSHIDA , Takao ARADACHI
IPC分类号： H01M10/42 , H02H7/08 , H02H3/05 , H01M2/10 , B60L3/00 , H02J7/00
CPC分类号： H01M10/4257 , B25F5/00 , B60L3/0046 , H01M2/1022 , H01M10/44 , H01M10/48 , H01M2010/4278 , H02H3/05 , H02H7/0827 , H02J7/00 , H02J7/0004 , H02J7/0032 , H02J2001/002
摘要： A power tool includes a motor and control means for controlling the motor. The motor is capable of being driven by power supplied from a battery pack including a battery cell. The control means is configured to continue to rotate the motor even when a motor-halt signal is inputted from the battery pack. With this structure, the power tool can be used continuously without need to halt rotation of the motor, even when receiving a halt signal, such as an overdischarge detection signal or an overcurrent detection signal.

2. 发明申请

US20180345433A1 ELECTRICALLY POWERED TOOL 审中-公开
公开(公告)号：US20180345433A1
公开(公告)日：2018-12-06
申请号：US15779546
申请日：2016-10-28
申请人： HITACHI KOKI CO., LTD.
发明人： Tomoaki SUDO , Yoshikazu KAWANO
IPC分类号： B23Q11/04 , B25F5/00
CPC分类号： B25F5/00
摘要： An electrically powered tool (1) includes a motor (10), a battery pack (5) supplying electric power to the motor (10), a battery voltage detection circuit (17) detecting battery voltage, a current detection circuit (15) detecting current flowing through the motor (10), and a microcomputer (20) controlling driving of the motor (10). The microcomputer (20) discriminates a load state of the motor (10) according to whether or not the current flowing through the motor (10) is equal to or greater than a threshold value, and the microcomputer (20) can change the threshold value in accordance with the battery voltage. When the current flowing through the motor (10) remains below the threshold value for a predetermined period of time, the microcomputer (20) stops the supply of electric power to the motor (10).

3. 发明申请

US20160273467A1 ENGINE WORKING MACHINE 审中-公开
标题翻译：发动机工作机
公开(公告)号：US20160273467A1
公开(公告)日：2016-09-22
申请号：US14442379
申请日：2013-11-13
申请人： HITACHI KOKI CO., LTD.
发明人： Yoshikazu KAWANO , Junichi KAMIMURA , Takuhiro MURAKAMI
IPC分类号： F02D41/06 , F02B63/02 , F02M37/00 , F02D41/30 , F02M1/16
CPC分类号： F02D41/062 , F02B63/02 , F02D41/3005 , F02D41/34 , F02D2400/06 , F02M1/046 , F02M1/16 , F02M3/045 , F02M7/133 , F02M35/10216 , F02M37/007 , F02M37/0076 , Y02T10/44
摘要： A cost of an engine working machine is suppressed, and startability of an engine is improved. In an engine working machine for driving a working tool by using an engine including: a fuel tank; a carburetor for supplying air-fuel mixture of fuel supplied from the fuel tank and air into a cylinder; a cylinder in which a piston is reciprocatable; and a crank case that holds the cylinder and forms a crank chamber, the engine working machine is provided with: an additional fuel supplying unit for supplying fuel to the engine separately from the carburetor; and a control unit for controlling an operation of the additional fuel supplying unit separately from supply of start-up fuel.
摘要翻译：抑制发动机工作机的成本，提高发动机的起动性。在用于通过使用发动机驱动作业工具的发动机工作机中，所述发动机包括：燃料箱; 用于将从燃料箱供给的燃料和空气的空气混合物供应到气缸中的化油器; 活塞可往复运动的气缸; 以及保持气缸并形成曲柄室的曲轴箱，所述发动机工作机设置有用于向所述发动机与所述化油器分开供给燃料的附加燃料供给单元; 以及控制单元，用于与提供启动燃料分开地控制附加燃料供应单元的操作。

4. 发明申请

US20140352995A1 ELECTRIC POWER TOOL 审中-公开
标题翻译：电动工具
公开(公告)号：US20140352995A1
公开(公告)日：2014-12-04
申请号：US14292813
申请日：2014-05-30
申请人： Hitachi Koki Co., Ltd.
发明人： Kenichi MATSUNAGA , Yoshikazu KAWANO
IPC分类号： B23Q15/007 , B23Q5/027 , B25F5/00
摘要： An object of the present invention is to provide an electric power tool capable of automatically changing the rotating speed of an electric motor in accordance with operation conditions. The electric power tool 11 which carries out an operation of polishing, peel-off, cutting, or the like by swinging a tip tool 13 attached to a tool retaining part 31 within the range of predetermined angles by the drive power of the electric motor 12, wherein the electric power tool has a control device configured to indirectly detect the load of the tip tool from a current value, and to control the rotating speed of the electric motor 12 to a maximum rotating speed and a minimum rotating speed on the basis of the load of the tip tool 13.
摘要翻译：本发明的目的是提供一种能够根据操作条件自动改变电动机的转速的电动工具。电动工具11，通过电动机12的驱动力使预定角度范围内的工具保持部31旋转而进行抛光，剥离，切断等操作其特征在于，所述电动工具具有控制装置，所述控制装置被配置为从当前值间接地检测所述尖端工具的负载，并且基于所述电动工具的最大转速和最小转速来控制所述电动机12的转速尖端工具13的负载。

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